Liquid Phase Hydrogenolysis of Biomass-derived Lactate to 1,2-Propanediol over Silica Supported Cobalt Nanocatalyst

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	Liquid Phase Hydrogenolysis of Biomass-derived Lactate to 1,2-Propanediol over Silica Supported Cobalt Nanocatalyst
	Cui F(崔芳); Huang ZW(黄志威); Xia CG(夏春谷); Chen J(陈静)
刊名	Chin. J. Chem.
	2011
卷号	29 页码:1319-1325
关键词	Co/SiO2 catalyst precipitation-gel method deposition-precipitation method ethyl lactate hydrogenolysis
ISSN号	1614-7065
通讯作者	陈静 ; 夏春谷
中文摘要	Liquid phase hydrogenolysis of ethyl lactate to 1,2-propanediol was performed over silica supporting cobalt catalysts prepared by two different methods: precipitation-gel (PG) technique and deposition-precipitation (DP) procedure. The cobalt species (Co3O4/cobalt phyllosilicate) present in the corresponding calcined PG and DP catalysts were different as a consequence of the preparation methods, and Co—OH—Co olation and Si—O—Co oxolation molecular mechanisms were employed to elucidate the chemical phenomena during the different preparation procedures. In addition, the texture (BET), reduction behavior (TPR and in-situ XRD), surface dispersion and state of cobalt species (XPS), and catalytic performance differ greatly between the samples. Because of small particle size, high dispersion of cobalt species and facile reducibility, the Co/SiO2 catalyst prepared by precipitation-gel method presented a much higher activity than the catalyst prepared by deposition-precipitation method. Metallic cobalt is assumed to be the catalytically active site for the hydrogenolysis reaction according to the catalytic results of both cobalt samples reduced at different temperatures and the structure changes after reaction.
学科主题	分子催化与技术
收录类别	SCI
资助信息	the National Science Fund for Distinguished Young Scholars of China (20625308)
语种	英语
WOS记录号	WOS:000293697500003
公开日期	2012-09-20
内容类型	期刊论文
源URL	[http://210.77.64.217/handle/362003/292]
专题	兰州化学物理研究所_OSSO国家重点实验室
通讯作者	Xia CG(夏春谷); Chen J(陈静)
推荐引用方式 GB/T 7714	Cui F,Huang ZW,Xia CG,et al. Liquid Phase Hydrogenolysis of Biomass-derived Lactate to 1,2-Propanediol over Silica Supported Cobalt Nanocatalyst[J]. Chin. J. Chem.,2011,29:1319-1325.
APA	崔芳,黄志威,夏春谷,&陈静.(2011).Liquid Phase Hydrogenolysis of Biomass-derived Lactate to 1,2-Propanediol over Silica Supported Cobalt Nanocatalyst.Chin. J. Chem.,29,1319-1325.
MLA	崔芳,et al."Liquid Phase Hydrogenolysis of Biomass-derived Lactate to 1,2-Propanediol over Silica Supported Cobalt Nanocatalyst".Chin. J. Chem. 29(2011):1319-1325.